Stocks in the Spotlight Friday

CBeyond, Life Time and United Natural Foods fell, while Navigant soared.

The provider of Internet-based voice services tumbled 20% on higher-than-expected customer turnover in the fourth quarter. The company said the reported turnover, or churn rate, of 1.4% would continue through the first quarter as the company filters out its "weakest credit, non-paying customers." Wachovia downgraded shares to...